<template>
  <div class="site-wrapper site-page--login">
    <div class="site-content__wrapper">
      <div class="site-content">
        <div class="brand-info">
          <h2 class="brand-info__text">{{ $t('system.name') }}</h2>
          <p class="brand-info__intro">V1.0</p>
        </div>
        <div class="login-main">
          <h3 class="login-title">{{ $t('form.userLogin') }}

             <!-- 国际化 -->
            <el-dropdown  style="cursor: pointer; float: right" @command="handleLanguage">
              <span class="el-dropdown-link" style="color: #fff;">
                {{languages[selectedLanguage]}}<i class="el-icon-arrow-down el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown" >
                <el-dropdown-item
                    v-for="(value, key) in languages"
                    :command="key"
                    :key="key"
                    @click="handleLanguage(key)"
                    :disabled="key == selectedLanguage"
                >
                  {{value}}
                </el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </h3>

          <el-form :model="dataForm" :rules="dataRule" ref="dataForm" @keyup.enter.native="dataFormSubmit()" status-icon>
            <el-form-item prop="userName">
              <el-input v-model="dataForm.userName" :placeholder="$t('form.account')"></el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input v-model="dataForm.password" type="password" :placeholder="$t('form.password')"></el-input>
            </el-form-item>
            <el-form-item prop="captcha">
              <el-row :gutter="20">
                <el-col :span="14">
                  <el-input v-model="dataForm.captcha" :placeholder="$t('form.captcha')">
                  </el-input>
                </el-col>
                <el-col :span="10" class="login-captcha">
                  <img :src="captchaPath" @click="getCaptcha()" alt="">
                </el-col>
              </el-row>
            </el-form-item>
            <el-form-item>
              <el-button class="login-btn-submit" type="primary" @click="dataFormSubmit()">{{ $t('form.login') }}</el-button>
            </el-form-item>
          </el-form>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { getUUID } from "@/utils";
import { randomLenNum } from "@/utils/validate";
import { clearLoginInfo } from "@/utils";
import Vue from "vue";
import { log } from 'util';
import { changeLanguage, currLanguage, __languages } from "@/i18n";
export default {
  data() {
    return {
       selectedLanguage: currLanguage(),
      languages: __languages,
      dataForm: {
        userName: "",
        password: "",
        uuid: "",
        captcha: ""
      },
      dataRule: {},
      captchaPath: ""
    };
  },
  created() {
    if (this.$cookie.get("access-token")) {
      this.$router.replace({ name: "home" });
    }
    this.getCaptcha();
  },
  mounted() {
  },
  methods: {
    initDataRule() {
      this.dataRule = {
         userName: [
          { required: true, message: this.$t('form.account') + this.$t('form.noNull') , trigger: "blur" }
        ],
        password: [
          { required: true, message: this.$t('form.password') + this.$t('form.noNull') , trigger: "blur" }
        ],
        captcha: [
          { required: true, message: this.$t('form.captcha') + this.$t('form.noNull') , trigger: "blur" }
        ]
      }
    },
    // 语言改变
    handleLanguage(val) {
        changeLanguage(val);
        this.selectedLanguage = val;
        this.initDataRule();
        // location.reload();
    },
    // 提交表单
    dataFormSubmit() {
      this.$refs["dataForm"].validate(valid => {
        if (valid) {
          // this.$http({
          //   url: this.$http.adornUrl('/sys/login'),
          //   method: 'post',
          //   data: this.$http.adornData({
          //     'username': this.dataForm.userName,
          //     'password': this.dataForm.password,
          //     'uuid': this.dataForm.uuid,
          //     'captcha': this.dataForm.captcha
          //   })
          // }).then(({data}) => {
          //   if (data && data.code === 0) {
          //     this.$cookie.set('token', data.token)
          //     this.$router.replace({ name: 'home' })
          //   } else {
          //     this.getCaptcha()
          //     this.$message.error(data.msg)
          //   }
          // })
          var grant_type = "password";
          var scope = "server";
          var username = this.dataForm.userName;
          var password = this.dataForm.password;
          var code = this.dataForm.captcha;
          var randomStr = this.randomStr;
          this.$http({
            // url: this.$http.adornUrl('/auth/oauth/token'),
            url: "/auth/oauth/token",
            headers: {
              Authorization: "Basic ZGctaWMtc3lzdGVtOmRnLWljLXN5c3RlbQ==" // 此处为base64编码后的 dg-ic-system:dg-ic-system
            },
            method: "post",
            params: { username, password, randomStr, code, grant_type, scope }
          }).then(
            response => {
              if (response.data !== null && response.data !== "") {
                this.$cookie.set("access-token", response.data.access_token);
                this.$router.replace({ name: "home" });
              } else {
                this.$message.error("系统错误，请联系管理员");
              }
            },
            error => {
              if (error.response.status === 478) {
                this.dataForm.captcha = ''
                this.$message.error("验证码错误或过期,请重新输入");
                this.getCaptcha();
              }
              if (error.response.status === 400) {
                this.dataForm.password = ''
                this.$message.error("密码错误");
                this.getCaptcha();
              }
              if (error.response.status === 401) {
                this.$message.error("没有该用户或权限失效，请重试");
                this.dataForm.userName = ''
                this.dataForm.password = ''
                this.dataForm.captcha = ''
                clearLoginInfo();
                this.getCaptcha();
              }
              if (error.response.status === 500) {
                this.$message.error("未知错误");
                this.dataForm.userName = ''
                this.dataForm.password = ''
                this.dataForm.captcha = ''
                clearLoginInfo();
                this.getCaptcha();
              }
            }
          );
        }
      });
    },
    // 获取验证码
    getCaptcha() {
      // this.dataForm.uuid = getUUID()
      // this.captchaPath = this.$http.adornUrl(`/captcha.jpg?uuid=${this.dataForm.uuid}`)
      this.dataForm.captcha = ''
      this.dataForm.uuid = getUUID();
      // this.captchaPath = this.$http.adornUrl(`/captcha.jpg?uuid=${this.dataForm.uuid}`)
      this.randomStr = randomLenNum(4, true);
      // this.captchaPath = this.$http.adornUrl(
      //   `/clientauth/code/${this.randomStr}`
      // );
      this.captchaPath = `/clientauth/code/${this.randomStr}`;
    }
  }
};
</script>

<style lang="scss">
.site-wrapper.site-page--login {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(38, 50, 56, 0.001);
  overflow: hidden;
  &:before {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    content: "";
    background-image: url(~@/assets/img/login_bg.jpg);
    background-size: cover;
  }
  .site-content__wrapper {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: transparent;
  }
  .site-content {
    min-height: 100%;
    padding: 30px 500px 30px 30px;
  }
  .brand-info {
    margin: 220px 100px 0 90px;
    color: #fff;
  }
  .brand-info__text {
    margin: 0 0 22px 0;
    font-size: 48px;
    font-weight: 400;
    text-transform: uppercase;
  }
  .brand-info__intro {
    margin: 10px 0;
    font-size: 16px;
    line-height: 1.58;
    opacity: 1;
  }
  .login-main {
    position: absolute;
    top: 25%;
    right: 10%;
    padding: 60px 60px;
    width: 470px;
    min-height: 480px;
    background-color: rgba(255, 255, 255, 0.425);
    border-radius: 15px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.678);
  }
  .login-title {
    font-size: 20px;
    color: #fff;
  }
  .login-captcha {
    overflow: hidden;
    > img {
      width: 100%;
      height: 35px;
      cursor: pointer;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
    }
  }
  .login-btn-submit {
    width: 100%;
    margin-top: 38px;
  }
  /* input样式覆盖 */
  .el-input__inner {
    -webkit-appearance: none;
    background-color: rgba(255, 255, 255, 0);
    /* border: 1px solid #fff; */
    border: 1px solid rgba(0, 0, 0, 0.234);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.6);
    color: #fff;
    font-size: 16px;
  }
  /* input placeholder属性样式 */
  .el-input__inner::-webkit-input-placeholder {
    /* WebKit, Blink, Edge */
    color: rgba(255, 255, 255, 0.8);
  }
  .el-input__inner:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: rgb(255, 255, 255);
  }
  .el-input__inner::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: rgb(255, 255, 255);
  }
  .el-input__inner:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: rgba(255, 255, 255, 0.8);
  }
}
</style>
